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  King 3.0 Coilover Shocks
King 3.0 Coilover Shocks
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Sold Individually
Select your options and then click the "update price" button below:
List Price: $819.00
Your Price: $779.95

Availability: Usually Ships Within 2 Weeks
Product Code: KING-PR30CO

Shock Travel

Video: How To Choose Shock Size
Reservoir Type


Add Compression Adjusters [+$139.95]
- Requires a Reservoir (Select Above)
- View Image of Adjusters


- Click here to purchase 3.75" ID springs

Shock Options

- View Rod End Types

- View Bump Stop Options

Add Internal Bypass (IBP) [+$265.00]
- View Image of King IBP







Custom Cylinder Length [+$75.00]

Custom Shaft Length [+$75.00]

Upgrade To Pure Race Series [+$150.00]
- For Race Use Only / Includes Upgraded Hardware

Viton Race Seals Upgrade [+$20.00]
- For Race Use Only / May Leak At Low Temperatures
Shock Valving:


Please describe your shock application in detail. We want your
shocks to be perfect, so if necessary, we will contact you after
your order for additional information.


King 3.0 Performance Race Series Coil Over Shocks are designed and built to support and control the most hard core, long range off-road racing vehicles. With spring rates available up to 800 lbs per inch, they can support even the largest of vehicles, and even the US military uses them on some of their specialty vehicles. Lower spring rates in the 100 and 200 lb range are also available.

New! Crawlpedia Coilover Install and Setup Guide
New! Crawlpedia Coilover Spring Rate Calculator

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If you find, or are quoted a better deal on King Shocks, we'll beat it!
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Standard Sizes and Options
These coil over shocks come standard with a 3.0 body, 1" diameter shock shaft, shock travel lengths from 8 to 18 inches, a remote reservoir, and dual rate coil carrier hardware. Triple spring rate hardware is an available upgrade, as is a piggyback reservoir. Coil springs are not included at this price, but they are available separately in spring rates from 100 to 800 lbs per inch.

Shock Specifications
3.0 model coil over shocks are available in the following standard sizes and specifications:

King Part # Body Dia. Travel Shaft Dia. Compressed Extended

PR3008 - CO 3.0" 8" 1.0" 16.000" 24.000"
PR3010 - CO 3.0" 10" 1.0" 18.000" 28.000"
PR3012 - CO 3.0" 12" 1.0" 20.650" 32.650"
PR3014 - CO 3.0" 14" 1.0" 23.250" 37.250"
PR3016 - CO 3.0" 16" 1.0" 26.000" 42.000"
PR3018 - CO 3.0" 18" 1.0" 28.000" 46.000"

(Compressed and extended shock lengths are measured from eye-to-eye.)
*Extended rod ends, IBP, and other shock options change shock stroke dimensions.
*For coilovers add 3/4" for bump stops and 1/2" for lower spring plate to the compressed length.*

How to Measure For Shocks and Coilovers

Free Spring Exchange

Custom Built and Valved by King Racing
There is no assembly line or storage warehouse for King shocks. These coil overs, like all of King's shocks, are hand built, one at a time, by a professional shock technician. Once your order is placed, a build sheet will be sent to King where your shocks will be custom built to your exact specifications. This unique service is available to Filthy Motorsports customers free of charge and it will only add a couple of days to your delivery time.

Selecting Shock Valving and Spring Rates
Valving and spring rates are the heart of every coil over shock, and matching them perfectly with your vehicle and driving style is imperative to maximizing your vehicle's performance. Selecting the right valving and spring rate on a coil over this large is not an easy task, but Filthy Motorsports and King Racing are here to help. We'll need to know as much information as possible about your vehicle, suspension system, and driving style to determine the proper valving. For this reason, we've added a "Shock Details" text box to the build menu above were you can tell us everything there is to know about your application. The more you tell us, the more likely your valving is to be correct. Don't worry, if after reviewing your information we feel that additional data is needed, we'll be sure to contact you for it directly. We cannot over emphasize the importance of proper valving and we will do everything we can to set you up with the perfect set of coil overs.

Servicing, Tuning, and Rebuilding
You will be glad to know that with only a little maintenance, these shocks are designed and built to last a lifetime of severe abuse. Filthy Motorsports has all of the replacement King shock parts you need to service, maintain, and tune your coil over shocks and the process as actually quite simple. By design, all one needs to service a King shock is a set of basic hand tools and a few hours. If you would rather not tackle the chore yourself, you can bring (or send) your coil overs to us and we'd be happy to service them for you.

New! How to Service and Rebuild King Shocks: King Shock Rebuild Instructions & King Shock Replacement Parts

[ More King Shocks Videos by Filthy Motorsports ]

Note: Some shocks ship uncharged. Nitrogen charging is available free to local customers.

King Shock images are © Copyright King Shock Technology, used with permission.
Additional images and product descriptions are © Copyright Filthy Motorsports, LLC.
  • Cadmium plated chromoly body, precision bored and honed
  • Exclusive truncated thread design for durability and strength
  • Pinch-bolt upper retainer holds tight yet protects the shock body
  • 1" heat treated, hard chromed, micro polished shaft
  • Aircraft quality billet aluminum components
  • Heat treated 6061 aluminum alloy piston
  • Heat treated stainless alloy valve shims
  • Teflon bronze composite wear band
  • Replaceable 1/2" Teflon lined stainless steal spherical bearings
  • Lightweight hard anodized aluminum reservoirs
  • Long lasting urethane seals
  • High quality Parker reservoir hose fittings
  • Fully rebuildable and serviceable
  • Made in the USA

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